This debate matters because the myth of state disinvestment has distorted attention away from the real causes of rising college costs.
For example, if state disinvestment was real, it offers a convincing explanation for why tuition has increased so much over the years. After all, if it costs $20,000 per year for a college to educate a student, then if the state cuts funding, the college may need to raise tuition to cover their costs.
But there are two problems with this argument. One, states have been increasing funding over time, not cutting funding, so this argument implies that colleges should have been cutting tuition not raising tuition.
Second, it assumes a 1 to 1 relationship, with tuition rising by $1 for every $1 cut in state funding. The data reject that assumption. The figure below shows the change in state funding and the change in tuition revenue by year. Under the “state disinvestment causes higher tuition” argument, each year should fall along the red line, indicating $1 higher tuition for every $1 cut in state funding. But only a few years fall along the red line. The actual relationship is given by the blue line, which shows that a $1 cut in state funding doesn’t lead to a $1 increase in tuition but rather an increase of $0.03 to $0.29. In other words, the relationship between changes in state funding and changes in tuition is much weaker than advocates assume. Changes in state funding simply do not explain much of the change in tuition.